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Reviewed in the United States on September 2, 2024
This was the best bargain on Amazon. Everything in this kit is top quality and the adapter works like a dream.
Johnny
Reviewed in the United States on May 27, 2020
I’m a well-known pro and specialize in tech and imaging reviews. If you are reading this review you already know the Sony mirrorless cameras are terrific. Like me, you are likely looking for ways to use your excellent Canon glass with the Sony system. Simply stated, the Sigma MC-11 is a terrific solution. But be aware that it’s not a miracle maker:PROS:No loss in optical quality.Great build and ease of use.A fair price.Most Canon EF and other lenses will work with quite good focusing speed and tracking.CONS:Some lenses are outliers so be sure you have latest firmware installed.You may like Sony lenses for typical lighter weight. The MC-11 adds 4.4 ounces to lens weight.OBSERVATIONS AND TESTING:I did an exhaustive test with my high end Canon lenses, using them with the 61 megapixel Sony A7R IV. A camera with this type of truly incredible resolution will really show differences although in most uses, minor differences in lens sharpness are not as discernable as what I’ll discuss here:My Canon lenses are great. The Sony lenses, in almost every case, are better yet. Thus, if you are using a camera with crazy high resolution like the A7R IV, you may want to switch to Sony lenses sooner rather than later. Depending on the Canon lens tested, focusing is really good, but fast tracking for sports and wildlife is a bit behind native Sony lenses. The best Sigmas and Tamrons optimized for Sony will also sometimes beat Canon lenses for speed and tracking.I tested Canon EF lenses including 16-35 f2.8, 16-35 f4, 24-70 f4, 70-200 f2.8, 70-200f4, 24 IS, 300 f4 IS, 1.4x TC. They all did a great job. Particularly, I’m seriously considering hanging onto my wonderful 70-200mm and 300mm Canon’s for use with the MC-11. Sony does not yet have quite the perfect match for me in those focal lengths that match light weight with pro performance. The only lens disappointment for me was the otherwise wonderful Canon 100 f2.8 Macro. It hunts for focus and was not a good performer with the MC-11.CONCLUSION:The price is right compared to the competition from Metabones that I have not yet tested. However, I don’t feel I need to. The Sigma MC-11 looks great in combination with Canon lenses and Sony bodies, has a build quality to match, and is the ideal bridge to meet the advantages of Sony system over my old amigo Canon.Hope this long review has been of some small help. HAPPY SHOOTING!
Lexie
Reviewed in the United States on May 21, 2020
I needed it to attach the Sigma 150-600mm to my Sony a6000 mirrorless, and this adaptor did the trick. It's a little slow if I want to take a look at pics I just took, but AF is responsive, and this worked well with the telephoto lens. I'm pleased with it.
Pete
Reviewed in the United States on July 15, 2019
***Testing done with A6300***This adapter is better value than the cheapo adapters but has it's limitations vs the Metabones.AF is good but inconsistant. Gets it right about 80% of the time. Works better with Sigma's own lenses. If video is your focus, this is the best option but still only works with Sigma's own lenses, eye AF works but only with Sigma's own lenses (although I heard that canon lenses work for video and eye AF on the newest of Sony's cameras but I can't vouch for that).
Mr. Dude
Reviewed in the United States on October 2, 2019
I am currently using this on a Sony a7ii. I was a little worried buying this adapter since it only supports Sigma lenses. I have not had any issues getting this to work with any non-Sigma lenses. I have used it with Canon, Tamron, and Tokina branded lenses with no issues. Auto focus works fine but is somewhat slower. Also depending on the lens when using manual focus the camera does not zoom in to assist with focus. I do keep the firmware updated whenever they release a new one and its not that hard to do. If you are not willing to pay double the price for the Metabones adapter you should definitely get the MC-11.
Customer
Reviewed in the United States on January 5, 2019
Well made and functions as advertised, in general. One of the reasons I bought it, perhaps the main reason, was to use my Canon EF-S 55-250 lens on my Sony alpha 6000 body; however, the adapter/converter will not accept the Canon EF-S lens. This was not made clear in the description on Amazon. I'm keeping it because my Sigma 18-300 Canon-mount lens fits it and works well with the alpha 6000 body, although that lens is mainly used with another camera. The auto focus works OK and there is no apparent vignetting.
6x9
Reviewed in the United States on January 22, 2019
Works well for me on the Sony A7 II with my Canon lenses. In the dim light, performance decreases, but it is still more than acceptable. Keep in mind that certain AF functionality is not supported with this adapter (e.g. eye focus etc.). Paid $149 during Christmas sale. A real value for money!
J. Koonce
Reviewed in the United States on January 22, 2019
Works well with my Canon prime 50MM lens and my Sigma 18mm-300mm lens. Doesn't work at all with a Canon Kit Lens, which is not a big deal since I never use the lens. And doesn't work with a Tokina wide angle Canon mount lens. Also not a deal breaker. Overall, for the money, a good deal. Focus Camera did a great job getting it to me on time. They seem like a great company to work with as I've purchased things from them before and everything was always on time and as advertised.
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